Cruise Report - liste des personnes ayant une page web - Université ...

Cruise report 15SIRENA 2 / D274 Cruise RRS Discovery Govan, Sept, 12 th – Ponta Delgada, Oct, 1 st , 2003----------------------------------------------------------------------------------------------------------------------- arrive on site at 06:15 Z from 06:15 to 10:21, recovery of S4 (see recovery sheet)S4 has successfully recorded 988 data files (that is close to 494 days)- 10:36 magnetometer in the water, start transit towards S3 through waypoints WP43-1 toWP-43-3. Superb weather, bright blue sky and light SE wind. Sighted a lot of seabirds.Day 9 – Saturday, September, 20th, 2003- 13:45 arrive on site S3. Start trying to enable the release. No success with either of thetwo decksets and either of the two transducers. Weather still nice, very light wind.- 19:50 : begin overnight magnetic profiles.Day 10 – Sunday, September, 21st, 2003- back over mooring at 07:30, sept, 20 th . Enabling the release still not successful.- spend morning rigging and afternoon using the recovery kit- 20:15 . begin overnight magnetic profilesDay 11 – Monday, September, 22nd, 2003- 08:00. Continue attempts to enable the release and sail four passes over the estimatedposition of the mooring with recovery kit deployed. Wind (7) and waves (4m) pick up in themorning. Visibility is poor at times under rain.- 1 8:00 :quit recovery after 52 hours on site and abandon S3 (see attached pages forconsiderations on the reasons of unsuccessful recovery operations).- 20:00 : all recovery gear on board. Maggie in the water. Start steaming towards S2.Day 12 – Tuesday, September, 23rd, 2003- on transit towards S2. Wind ESE 3-4. Moderate sea and swell. 09:00 :a few dolphins playwith the ship’s bow wave for a short while .Day 13 – Wednesday, September, 24th, 2003 (Matt’s birthday)- arrive on site S2 at 06:30. Start sending enable commands to the release at 07:00- from 07:00 to 11:30, recovery of S4 (see recovery sheet)S2 has successfully recorded 1003 data files (that is approx. 501 days of data)- 13:00 Steering gear failure drill.- 13:30 On transit towards S1. Wind 2, calm sea, long swell.Day 14 – Thursday, September 25th,, 2003